COMMUNICATION METHOD AUTOMATICALLY INCREMENTING IDs OF ICs HAVING DAISY CHAIN CONNECTION STRUCTURE, AND IC COMMUNICATION DEVICE PERFORMING THE METHOD

1. An integrated circuit (IC) communication device comprising: a plurality of ICs including first to N-th ICs arranged to be adjacent wherein the-N is an integer equal to or greater than 2; and a controller connected to the first IC, wherein when the controller in a sleep mode receives a wakeup signal and transmits the wakeup signal to the first IC, the wakeup signal is transmitted in two directions to two ICs, from the first to N-th ICs, arranged to be adjacent.

2. The device according to claim 1 , wherein an initial identifier (ID) identification number before the controller receives the wakeup signal is set to 0, and the plurality of sensing ICs is set to increment the ID identification number by 1 as one wakeup signal is received.

3. The device according to claim 2 , wherein when at least one IC among the plurality of ICs receives the wakeup signal while the ID identification number is 1 or larger, the IC transmits the wakeup signal in one direction not to the IC that has transmitted the wakeup signal, but to another IC arranged to be adjacent.

4. The device according to claim 1 , wherein the first to N-th ICs are connected in a daisy chain method.

5. A communication method automatically incrementing identifiers (IDs) of integrated circuits (ICs), as a method of performing IC communication by an IC communication device including first to N-th ICs arranged to be adjacent wherein the N is an integer equal to or greater than 2, the method comprising: a first transmission step of transmitting a wakeup signal to the first IC, by the IC communication device; a second transmission step of simultaneously transmitting the wakeup signal transmitted at the first transmission step in two directions to a controller and the second IC arranged to be adjacent to the first IC, by the IC communication device; a third transmission step of simultaneously transmitting the wakeup signal transmitted at the second transmission step in two directions to the first IC and the third IC arranged to be adjacent to the second IC, by the IC communication device; and a step of simultaneously transmitting the wakeup signal transmitted at the third transmission step in two directions to two ICs arranged to be adjacent among the third to N-th ICs, by the IC communication device.

6. The method according to claim 5 , wherein the first transmission step further includes a first identification step of incrementing an ID identification number of the first IC by 1 according to the wakeup signal transmitted at the first transmission step, and the second transmission step further includes a second identification step of incrementing an ID identification number of the second IC by 1 according to the wakeup signal transmitted at the second transmission step.

7. The method according to claim 6 , wherein the third transmission step further includes a third identification step of incrementing an ID identification number of the third IC by 1 and additionally incrementing the ID identification number of the first IC by 1 according to the wakeup signal transmitted at the third transmission step.

8. The method according to claim 7 , further comprising, after the third transmission step, a fourth transmission step of confirming the number of ICs arranged to be adjacent to the third IC, transmitting the wakeup signal transmitted at the third transmission step to the second IC arranged to be adjacent to the third IC when the IC arranged to be adjacent is confirmed to be one, and transmitting the wakeup signal in one direction to the controller connected to the first IC.

9. The method according to claim 8 , wherein the fourth transmission step further includes a fourth identification step of additionally incrementing an ID identification number of the second IC by 1 according to the wakeup signal transmitted at the fourth transmission step.

10. The method according to claim 9 , further comprising, after the fourth transmission step, a fifth transmission step of transmitting the wakeup signal in one direction to the first IC connected to the second IC.

11. The method according to claim 9 , wherein the fifth transmission step further includes a fifth identification step of additionally incrementing the ID identification number of the first IC by 1 according to the wakeup signal transmitted at the fifth transmission step.

12. The method according to claim 11 , further comprising, after the fifth identification step, a step of counting the number of received wakeup signals, comparing the counted number with a total IC number, and determining whether or not to set an ID identification number, by the controller.